Multiple Choice Questions on Vapour Compression Cycle

Multiple Choice Questions on Vapour Compression Cycle

University

20 Qs

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Multiple Choice Questions on Vapour Compression Cycle

Multiple Choice Questions on Vapour Compression Cycle

Assessment

Quiz

Engineering

University

Practice Problem

Hard

Created by

Jiban Kalita

Used 2+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a vapour compression cycle, the refrigerant enters the compressor as:

Saturated liquid

Wet vapour

Superheated vapour

Subcooled liquid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an ideal vapour compression cycle, heat rejection takes place in the:

Evaporator

Condenser

Compressor

Expansion valve

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The expansion device in a vapour compression cycle is usually a:

Turbine

Throttle valve

Reciprocating piston

Diffuser

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an ideal vapour compression cycle, compression is assumed to be:

Isothermal

Isobaric

Adiabatic and reversible (isentropic)

Polytropic

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The main function of the evaporator is to:

Reject heat

Absorb heat from surroundings

Compress refrigerant

Expand refrigerant

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The coefficient of performance (COP) of a vapour compression cycle is given by:

Work input / Heat output

Heat absorbed in evaporator / Work input

Work output / Heat rejected

Heat rejected / Work input

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a vapour compression cycle, subcooling of liquid refrigerant before expansion:

Decreases COP

Increases COP

Has no effect

Decreases refrigerating effect

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